问Breeze | datajs -没有数据处理程序

EN

[BreezeController]
public class CategoriesController : ODataController
{
    readonly EFContextProvider<NORTHWNDContext> contextProvider =
        new EFContextProvider<NORTHWNDContext>();

    [HttpGet]
    [EnableBreezeQuery]
    public IQueryable<Category> GetCategories()
    {
        return contextProvider.Context.Categories;
    }

    [HttpPost]
    public SaveResult SaveChanges(JObject saveBundle)
    {
        return contextProvider.SaveChanges(saveBundle);
    }
}

breeze.config.initializeAdapterInstance("dataService", "webApiOData", false);

var manager = new breeze.EntityManager({
    dataService: new breeze.DataService({
        serviceName: "http://localhost:18384/",
        hasServerMetadata: true,
        adapterName: "webApiOData"
    })
});

breeze.EntityQuery.from('Categories').using(manager).execute();

var dispatchHandler = function (handlerMethod, requestOrResponse, context) {
    /// <summary>Dispatches an operation to handlers.</summary>
    /// <param name="handlerMethod" type="String">Name of handler method to invoke.</param>
    /// <param name="requestOrResponse" type="Object">request/response argument for delegated call.</param>
    /// <param name="context" type="Object">context argument for delegated call.</param>

    var i, len;
    for (i = 0, len = handlers.length; i < len && !handlers[i][handlerMethod](requestOrResponse, context); i++) {
    }

    if (i === len) {
        throw { message: "no handler for data" };
    }
};

var handlers = [odata.jsonHandler, odata.atomHandler, odata.xmlHandler, odata.textHandler];